Question 96671
let h=height ... (cylinder volume)+(cone volume)=1400pi


pi(10^2)(2h/3)+(pi(10^2)(h/3))/3=1400pi ... dividing by 100pi gives (2h/3)+(h/3)/3=14


(6h/9)+(h/9)=14 ... 7h=14*9 ... h=18